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Refactor Day04 and Day09 to rename methods and variables for improved clarity and update Day09 tests with additional input file and test case

This commit is contained in:
Sebastian Lindemeier 2025-12-11 06:01:54 +01:00
parent 411672d8c3
commit 82772fd4e0
3 changed files with 14 additions and 4 deletions
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10
AoC_2025.Tests/Day09Test.cs
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@ -7,6 +7,7 @@ public class Day09Test
private IPuzzleSolver<long> _sut; private IPuzzleSolver<long> _sut;
private static readonly string rootPath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments); private static readonly string rootPath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
private readonly string TestInputPath = @$"{rootPath}\AoC-PuzzleInputs\2025\Test\day09.txt"; private readonly string TestInputPath = @$"{rootPath}\AoC-PuzzleInputs\2025\Test\day09.txt";
private readonly string Test2InputPath = @$"{rootPath}\AoC-PuzzleInputs\2025\Test\day09_2.txt";
private readonly string ProdInputPath = @$"{rootPath}\AoC-PuzzleInputs\2025\Prod\day09.txt"; private readonly string ProdInputPath = @$"{rootPath}\AoC-PuzzleInputs\2025\Prod\day09.txt";
public Day09Test() public Day09Test()
@ -37,6 +38,15 @@ public class Day09Test
Assert.Equal(24, actual); Assert.Equal(24, actual);
} }
[Fact]
public void Part02_Test2_equals_30()
{
// todo: color edges as right, left, up, down to only allow rectangles between right and left or up and down edges
var actual = _sut.SolvePart2(Test2InputPath);
Assert.Equal(30, actual);
}
[Fact] [Fact]
public void Part02_Prod_equals_1568849600() public void Part02_Prod_equals_1568849600()
{ {

5
AoC_2025/Day04.cs
View File

@ -55,13 +55,12 @@ public class Day04 : IPuzzleSolver<long>
private HashSet<Coordinate> GetRollCoordinates(IEnumerable<string> paperrollGrid) private HashSet<Coordinate> GetRollCoordinates(IEnumerable<string> paperrollGrid)
{ {
var coordinates = paperrollGrid var coordinates = paperrollGrid
.Index() .SelectMany((line, xIndex) => GetRollCoordinates(line, xIndex))
.SelectMany(indexedLine => GetCoordinates(indexedLine.Item, indexedLine.Index))
.ToHashSet(); .ToHashSet();
return coordinates; return coordinates;
} }
private IEnumerable<Coordinate> GetCoordinates(string gridLine, int xIndex) private IEnumerable<Coordinate> GetRollCoordinates(string gridLine, int xIndex)
{ {
var indexedCharacters = gridLine.Index(); var indexedCharacters = gridLine.Index();
var validRolls = indexedCharacters.Where(tuple => tuple.Item == '@'); var validRolls = indexedCharacters.Where(tuple => tuple.Item == '@');

3
AoC_2025/Day09.cs
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@ -64,7 +64,8 @@ public class Day09 : IPuzzleSolver<long>
private bool IsRectangleInsideBorders(CoordinatePair[] borders, CoordinatePair rectangle) private bool IsRectangleInsideBorders(CoordinatePair[] borders, CoordinatePair rectangle)
{ {
return !borders.Any(border => RectangleCrossesBorder(rectangle, border)); var bordersCrossed = borders.Any(border => RectangleCrossesBorder(rectangle, border));
return !bordersCrossed;
} }
private CoordinatePair AsPair(Coordinate a, Coordinate b) private CoordinatePair AsPair(Coordinate a, Coordinate b)